Spectrum width
- grid-auto-flow: column with implicit columns wasn't reliably
stretching to fill the parent. Switch to explicit
grid-template-columns: repeat(var(--spectrum-bars), minmax(0, 1fr))
with the bar count exposed as a CSS variable from JS so the
column count and the actual bar count stay in sync.
- !important on display/grid-template-columns/width to defeat any
legacy descendant rules.
Device selection
- Picking a device in the audio-device dropdown is an explicit
signal that the user wants capture. Auto-enable the visualizer
if it isn't already on, then call applyVisualizerMode so the
WS subscription happens and the badge flips from 'Available' to
'Active'. Was only doing this when visualizer was already on,
which is why the user kept seeing 'Available, not capturing'.
alexei.dolgolyov
a0f74dfc39